Mr. Piff

Whats up guys, just checking to see if 18/11 with an et of 41 will work on the rears of an 87 s4

Thanks
Cedric

DougM

Not without rolling the fenders.

Mr. Piff

So if I roll the fenders, I should be good?
Are spacers needed?

Thanks for the reply

DougM

Opposite of needing spacers. You need to roll the fenders to allow for the clearance. The 11" wheel with the et41 will be really pushing the limits. I have 11" rears with an et51 and I needed to roll the fenders. The wheel you are looking at would stick out 10 more mm which is almost 1/2". Personally, I would pass on that size with that much offset.

Mr. Piff

Thanks for the advice, I'll pass on them?

Chuck Schreiber

AO was able to do it on his GT, but yes, he rolled the fenders.

You can do the 18x10's on your car and they will fit NO problem.
Run 275/35-18, they will fill out the fender nicely be extremly close to stock rolling diameter.

Check this website
http://www.miata.net/garage/tirecalc.html

Mr. Piff

Thanks Chuck, I'll contact AO and see what he thinks. I know he has a wheel fitment calc., but I'm on the iPad and it won't allow me to use it. I'll try from the computer when I get home from work.

I'm tired of these oz's and am currently looking something different.

Like these k28's I'm looking at now.

Chuck Schreiber

The K28's are my favorite!!
They are pretty dang expensive though...

BTW,
The 18x10 rears are ET 58, so they'll bolt right up, many have done it.

IT you don't mind rolling the fenders (Louisville Slugger routine) you can fit those 11's..

Here's AO's video on YouTube

I think he used a spacer in the rear as well. (5mm or 7mm???)

Mr. Piff

One of my favorites too.

Hoping you guys can talk some sense into me before I pull the trigger on looks alone.

whiteNSXs

You will need to roll the fender and pull the fender out somewhat. It is doable. Perhaps a touch of negative camber will smooth things along. I had 18x11 et45 and the car is slightly lowered.
Steve

IcemanG17

look for the standard rear wheel....18x10x58mm....fits perfect with no rolling required.....up to a 275 tire is super easy too

Mr. Piff

Thanks guys, I have no problems with rolling the lip, but not too keen on pulling out the fenders. Don't really know how to do that.

Fnic99

I have 18x10x58 wheels but haven't mounted them yet. Plan to put 295/30's on there. The car is a 91S4 with factory rolled fenders. Do I need a spacer on there to make them fit right? If yes, what size?

Thanks.

DougM

Again, it is quite the opposite. Spacers push the wheels farther out. Low offsets and wide wheels also push the wheels out. With the size you mentioned, I would just mount them up. Take a look at how they fit and then see if you need a spacer to push them out. Spacers create negative offset. If you add a 10mm spacer to et58 wheels, you basically lower the offset to 48mm.

Fnic99

Doug, thanks for the reply. To clarify my question, I read somewhere that too much of a negative offset can cause the inside on the tire to rub on the muffler, suspension parts, etc. I don't know if this is the case with these wheels, but I believe a spacer may be necessary to avoid this. Too much of a spacer could cause the wheels to rub on the fender. This wheel and tire combo seem to be popular on this board. If anyone can tell me what they are using I would appreciate it. I would like to order the spacer ahead of time so I have everything ready. Thanks in advance.